diff --git a/_posts/2017-04-30-ocaml.md b/_posts/2017-04-30-ocaml.md
index ed0608d..7b2ac89 100644
--- a/_posts/2017-04-30-ocaml.md
+++ b/_posts/2017-04-30-ocaml.md
@@ -3,3 +3,5 @@ title: OCaml
 code: 0.1 +. 0.2;;
 result: float = 0.300000000000000044
 ---
+
+The [decimal](opam.ocaml.org/packages/decimal/) library provides an arbitrary-precision `Decimal.t` type for OCaml.